Adds website theme serialization system

src/app/admin/admin.component.ts

@@ -13,6 +13,7 @@ import { Underwriter } from '../interfaces/underwriter';
 import {
   MobileBuildDefaults,
   MobileBuildRequest,
+  ThemeStatus,
 } from '../interfaces/mobile-build';
 import { ShowService } from '../services/show.service';
 import { EventService } from '../services/event.service';
@@ -126,6 +127,10 @@ export class AdminComponent implements OnInit {
   mobileBuildPreflightIssues: string[] = [];
   mobileBuildBusy = false;
 
+  // ── Theme JSON status (mobile build tab) ────────────────────
+  readonly themeJsonStatus$ = new BehaviorSubject<ThemeStatus | null>(null);
+  readonly themeJsonLoading$ = new BehaviorSubject<boolean>(false);
+
   buildAndroid = true;
   buildIos = true;
   androidApplicationId = '';
@@ -412,6 +417,36 @@ export class AdminComponent implements OnInit {
     this.onMobileBuildSelected(this.selectedMobileBuildId);
   }
 
+  // ── Theme JSON status ──────────────────────────────────────
+
+  async loadThemeJsonStatus(): Promise<void> {
+    try {
+      this.themeJsonLoading$.next(true);
+      this.themeJsonStatus$.next(await firstValueFrom(
+        this.mobileBuildService.getThemeStatus(),
+      ));
+    } catch {
+      this.themeJsonStatus$.next(null);
+    } finally {
+      this.themeJsonLoading$.next(false);
+    }
+  }
+
+  async regenerateThemeJson(): Promise<void> {
+    try {
+      this.themeJsonLoading$.next(true);
+      await firstValueFrom(this.mobileBuildService.regenerateTheme());
+      await this.loadThemeJsonStatus();
+    } catch (err) {
+      this.mobileBuildErrorMessage = this.getErrorMessage(
+        err,
+        'Failed to regenerate theme.json.',
+      );
+    } finally {
+      this.themeJsonLoading$.next(false);
+    }
+  }
+
   getArtifactDownloadHref(path: string): string {
     return `${getAppConfig().apiBaseUrl}${path}`;
   }